Inside Google’s Internet Justice League and Its AI-Powered War on Trolls

Around midnight one Saturday in January, Sarah Jeong was on her couch, browsing Twitter, when she spontane­ously wrote what she now bitterly refers to as “the tweet that launched a thousand ships.” The 28-year-old journalist and author of The Internet of Garbage, a book on spam and online harassment, had been watching Bernie Sanders boosters attacking feminists and supporters of the Black Lives Matter movement.